Comparison

iCrucible vs Needle AI

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

iCrucible

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iCrucible is an AI tool for Materials Science. Using this app, you can learn about how AI tools work for materials screening, and may discover candidate compounds. Learn more at our website: https://www.rimcs.co.jp/ iCrucible makes a prediction of a ternary system on your iPhone or iPad without external services, using graph neural networks and crystal prototype databases bundled in the app. You can watch the phase diagram redrawn at the end of each stage during performing the prediction task. Note that it is the phase diagram at absolute zero (i.e., 0 kelvin) and around zero pressure (i.e., 0 kilobar). Performance It takes a few seconds to minutes depending on the creation settings and your device. The app has a multithreading option to accelerate the core of the AI tool - for example, computationally intensive tasks are sped up around 2.5x on M1 iPad Air. Chemical System A chemical system is selected by choosing three unique chemical elements from: • Element List (with group and period restriction) or • Periodic Table Materials Screening The materials screening is conducted by thresholding two values: • Predicative Variance • Stability (Energy above Convex Hull) Phase Diagram Drawing The drawing is customizable and responsive with useful features: • Formula Labeling • Stability Thresholding • Zoom • Mark Size • Font Size • Balloon with each compound information Confidence Chart The chart shows the distribution of predicative confidences, and provides an overall confidence of the system prediction and the phase diagram. Compound Table The table shows stable and metastable compounds with stabilities and predicative confidences, from which you can easily choose candidate compounds. Settings You can set the default preferences of the chemical system creation and the phase diagram drawing in the App's Settings. The entrance of the In-App Shop is also located in the App's Settings. We offer Free, Standard, and Premium plan. You can subscribe to one of Standard and Premium plan at the In-App Shop. The Shop's Help describes the system tiers used for the content management. Free features: • Free Elements: H to Ar. (*) • Ensemble Size: M = 1. • Prototype Database: Small only. • You can take a note about each chemical system to not forget any novel findings and great ideas. Standard features: • Standard Elements: K to Xe. (*) • Ensemble Size: M is not more than 5. • Prototype Database: Small, Medium, and Large. • You can sort chemical systems into Stocks that are a storage for them. • Chemical systems can be shared between your devices by peer-to-peer Wi-Fi networking. Premium features: • Premium Elements: Cs to Pu except Po to Ra. (*) • Ensemble Size: M is not more than 10. • Prototype Database: all scales, that is, Small, Medium, Large, and Huge. • Multithreading can be used to accelerate the core of the AI tool - for example, computationally intensive tasks are sped up around 2.5x on M1 iPad Air. * Noble gas elements are not available. Flame Gems You need flame gems for a non-free system creation, and can buy them at the In-App Shop. The Shop's Help describes how to consume flame gems and has the cost calculator. You have to buy no flame gems if you are on the Free plan. Terms of Use: http://www.apple.com/legal/itunes/appstore/dev/stdeula

About

Needle AI

This application allows users to build secure, custom generative AI solutions. It connects to various data sources to extract insights and facilitate natural language conversations, enabling informed decision-making and data-driven growth. On-premises deployment ensures data security.

Highlights
  • Custom generative AI solutions
  • Secure on-premises deployment
  • Natural language chat conversations
  • Extract insights from data
  • Data extraction from uploads
  • Monitor LLM performance
Features
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Needle: Your Personalized GenAI Framework, Build secure conversational applications at speed On-demand custom generative AI solutions Extracting insights from extensive amounts of data and using them to drive meaningful conversations is a constant challenge. The Needle is the key to unlocking this hidden potential. It connects you to diverse data sources, extracts actionable insights, and empowers you to make informed decisions that drive growth. Additionally, its on-premises deployment ensures that your data remains secure. ---------------- Key features: ---------------- >>> Chat conversations: Ask questions, express needs, and receive insightful responses in natural language. It’s like having a conversation with your smartest teammate, always ready to listen and assist. >>> Powerful insights: Track user journeys and securely monitor the performance, data quality, and usage of LLMs for optimal operation. With Needle, gain deeper insights, build trust, and drive success. >>> Data extraction from your uploads: Take advantage of Needle's powerful natural language processing to empower yourself. Obtain valuable information from your documents to make it easily searchable, extractable, and ready to be utilized.

Screenshots

iCrucible4 screens
Needle AI4 screens

Verdict

The call

The clearest difference is in-app purchases: Needle AI at none against iCrucible's 8. Needle AI also leads on update cadence (every 2 months vs every 5 months) and iOS requirement (15.0 vs 17.2). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. iCrucible sells 8 in-app purchases, starting at $2.99 per month. Needle AI asks for nothing beyond the download.

UpkeepUpdate frequency

iCrucible ships an update every 5 months, Needle AI every 2 months. The most recent releases landed on December 24, 2025 and August 26, 2026 respectively.

Scorecard3 real differences · 7 level
iCrucible versus Needle AI: the parameters behind the verdict, then further details
ParameteriCrucibleNeedle AI
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 5 monthsEvery 2 months — better
AdsNoNo
In-app purchasesYesNo — better
Monetization—Free
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.215.0 — better
Further details — not scored
Size172 MB12 MB
Age rating4+4+
DeveloperRIMCS LLCSoftweb Solutions Inc.

In-app purchases

8 purchases

iCrucible

Subscriptions4
  • Standard$2.991 Month
  • Premium3 Days trial$4.991 Month
  • Standard$29.991 Year
Show 1 more
  • Premium$49.991 Year
One-time4
  • 500 Flame Gems$4.99
  • 2,500 Flame Gems$23.99
  • 5,000 Flame Gems$46.99
Show 1 more
  • 10,000 Flame Gems$91.90
None

Needle AI

No in-app purchases

Questions

Is iCrucible free?
iCrucible is free to download, with in-app purchases available.
Is Needle AI free?
Needle AI is free to download, with no in-app purchases.
Do iCrucible or Needle AI have ads?
Neither iCrucible nor Needle AI shows ads.
Which is updated more often, iCrucible or Needle AI?
iCrucible ships an update every 5 months, and Needle AI every 2 months. Most recently, iCrucible was updated on December 24, 2025 and Needle AI on August 26, 2026.

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